Querry upsets Kiefer in Las Vegas (AP) Sam Querry advanced to his second ATP Tour quarterfinal of the season, beating eighth-seeded Nicolas Kiefer 6-3, 6-1 on Wednesday in windy conditions in the Tennis Channel Open. Querry had six aces and converted 74 percent of his first serves. "I was pretty aggressive," Querry said. "On the second serve, I was taking some chances. Publish Date: Wed, 05 Mar 2008 16:17:25 PST Read more...